Electric cell Flashcards
What is a simple electric cell
When two metals of different reactivity are placed in an electrolyte and connected with a wire and a current flowing between them
What is the direction of electron flow
More reactive to less reactive metal
What is the anode
More reactive metal
What is the cathode
Less reactive metal
What terminal is anode
Negative
What terminal is cathode
Positive
What is the purpose of a salt bridge
To close the circuit, allowing current to flow
Why is a salt bridge able to conduct electricity
Salt bridges contain dissolved ionic compounds. Hence, they contain mobile ions which are able to carry an electric charge
What is a fuel cell
A fuel cell is a chemical cell in which a fuel and oxygen are continuously supplied to produce electricity directly.
How is hydrogen obtained to be used in hydrogen fuel cell
Catalytic cracking of crude oil or electrolysis of water
